How install PySide/PyQt in Blender?
Either unpack the PySide/PyQt folder(s) to Blender's site-packages

\Blender\2.xx\python\lib\site-packages\&gt;&gt;HERE&lt;&lt;


You should then be able to import them normally.

Or install them to add them to your system's python installation and use sys.path.append() in your script to add the required folders to Blender's module search path temporarily and import as usual.